Centralised exchanges vs decentralised exchanges

The cryptocurrency space has continued to grow in popularity since its inception in 2009, following the release of Bitcoin. Since then, Bitcoin has grown steadily from a grassroots movement into a widely recognised investment asset, especially as interest from Wall Street and institutional investors has increased.

In January 2024, 11 Spot Bitcoin Exchange Traded Funds (ETFs) launched simultaneously. This was after years of heartache and battles with US regulators. Within 11 months, the top-performing ETF grew to over US $50bn of Assets under Management (AUM), making it the fastest-growing ETF in ETF history. This phenomenal growth has contributed to a sharp spike in Bitcoin’s price, which then became part of an often-repeated cycle.

This renewed attention often leads to a surge in new users, many of whom ask a simple question: “Where can I buy cryptocurrencies?”

Buying and trading cryptocurrencies usually comes down to two options:

• Centralised exchanges (CEXs)

• Decentralised exchanges (DEXs)

Each type of exchange offers a unique approach to exchanging and trading cryptocurrencies, each with its own benefits and challenges. Understanding the differences between them can help you choose the platform that best suits your needs and risk appetite.

What is a centralised exchange (CEX)?

A centralised exchange (CEX) is managed by a company or organisation and operates much like a traditional online stock exchange, but for cryptocurrencies. CEXs match buyers and sellers, handle transactions efficiently, and often provide customer support. Established in Melbourne in 2013, BTC Markets is an example of a CEX.

What is a decentralised exchange (DEX)?

Decentralised exchanges (DEXs), on the other hand, operate without central control. Instead, DEXs use smart contracts that automate transactions on blockchains such as Ethereum. These smart contracts enable peer-to-peer (P2P) trading to take place, much like the Uber of trading.

You connect directly to a DEX using your cryptocurrency wallet. This wallet serves as your sole access point and primary form of verification. Trades are executed directly between users, meaning you remain in control of your funds at all times. However, you’re also fully responsible for their security.

Advantages and disadvantages of centralised exchanges

Advantages:

• Ease of use: Intuitive interfaces make it easy for beginners to buy and sell crypto with Australian dollars.
• Higher liquidity: CEXs typically attract more users, which results in higher trading volume, faster transactions, and more stable prices.
• Customer support: Help desks and FAQs support a smoother onboarding process and can be critical if you encounter technical issues or transaction errors.
• Fiat integration: Many centralised platforms support AUD bank transfers, credit cards, or PayID, providing easy on-ramps to crypto markets.

Disadvantages:

• Downtime risks: Outages on centralised platforms may halt trading during critical market movements.
• Custodial control: Funds are held by the platform, which may be at risk in the event of a platform issue.
• Reduced privacy: Compliance with KYC and AML regulations means users exchange some privacy for accessibility.

Advantages and disadvantages of decentralised exchanges

Advantages:

• User custody: You retain full control over your assets, with no third-party custody involved.
• Privacy: Most decentralised exchanges do not require account creation or identity verification.
• Open access: Anyone with a crypto wallet and internet connection can trade freely.
• Wider choice of smaller tokens: DEXs often list emerging or obscure tokens not available on centralised platforms.

Disadvantages:

• Complexity: Interfaces are often complex and can be intimidating to beginners.
• Lower liquidity: Trades may take longer to fill, with potential slippage, where executed prices are less favourable than expected.
• Very limited fiat options: Most decentralised exchanges support only crypto-to-crypto trades.
• No customer support: There’s no recourse if you make a mistake or fall for a scam, such as purchasing a fake token.

Both centralised and decentralised exchanges play an important role in the crypto ecosystem. By understanding the differences in custody, access, liquidity, and security, users can make more informed decisions about how they engage with digital assets.

Trade crypto with BTC Markets

Whether you're new to cryptocurrency or seeking a reliable platform to trade, BTC Markets offers a compliant and convenient solution tailored to Australian users.